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EH Mechanical Booster Pumps

Improving performance, reducing capital costs

Mechanical booster pump

EH Mechanical Booster Pumps

The EH range is ideal for use with high differential pressures, allowing the booster pump to be started at the same time as the backing pump, reducing your total pump down times and making your operations simpler. 

Pump-down times cut by up to 50%

Our patented hydrokinetic drive allows the booster to operate from atmospheric pressure. The total evacuation time can be reduced by as much as 50% as the booster can assist in pump down from the very beginning, saving you valuable process time. The HK drive allows for the pump to automatically slow down at higher pressures preventing the pump from over-heating.

Robust operation even for harsh duties

Our proven shaft seal design helps protect the pumping mechanism and gearbox from cross-contamination with even your harshest applications. EH booster pumps are not damaged by sudden increases of inlet pressure helping you to avoid unscheduled breakdowns and improve overall process performance.

Automatic overload protection

The varying rotational speed of the pump protects the motor from overload and over-heating for longer-life operation. The built-in hydrokinetic drive automatically allows the pump to operate with high-pressure differentials, making this a highly flexible workhorse.

Simplicity with reduced installation costs

With an EH booster pump, you do not need by-pass lines, pressure switches or inverters reducing the overall installation costs. With a reliable and robust hydrokinetic drive, you get the advantage of a simple and easy installation with minimal maintenance

  • Vacuum metallurgy
  • Vacuum distillation
  • Vacuum packaging
  • Steel de-gassing
  • Coating
  • Low density wind tunnels
  • Space simulation
  • Vacuum impregnation
  • Oil drying and de-gassing
  • Pharmaceutical freeze drying
  • Industrial freeze drying
  Nominal displacement Pressure differential across pump Motor power
50 Hz 60 Hz 50 Hz 60 Hz 50 Hz 60 Hz
m3/hr cfm m3/hr cfm mbar Torr mbar Torr kW Hp kW Hp
EH250 310 185 375 220 0-180 0-140 0-150 0-115 2.2 3 2.2 3
EH500 505 300 605 335 0-110 0-83 0-90 0-68 2.2 3 2.2 3
EH1200 1195 715 1435 845 0-90 0-68 0-75 0-56 3 4 3 4
EH2600 2590 1525 3110 1830 0-120 0-90 0-67 0-50 11 15 11 15
EH4200 4140 2440 4985 2935 0-70 0-52 0-50 0-38 11 15 11 15
Edwards employees standing in corridor smiling

Read more on our offerings in Service Solutions